I signed both Neres and Stengs in Fifa career mode for Leicester City.
Neres turned out to be a great signing. Stengs was a little slow to develop, although his overall ability ultimately reached a marginally higher level than Neres.
Ultimately I kept Neres and sold Stengs as the former could play LW/CAM/RW whereas the latter could only play RW. He has helped me win the league, FA Cup, Carabao Cup and Champions League for each of the past four seasons.
Of course, this is all directly analogous to real life and should be used to dictate our transfer strategy.